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Men's singles
2021 Serbia Open
Final
Champion	Matteo Berrettini
Runner-up	Aslan Karatsev
Score	6–1, 3–6, 7–6
Details
Draw	28 (4 Q/ 3 WC)
Seeds	8
Events
Singles men women Doubles men women
← 2012 · Serbia Open · 2022 →

Matteo Berrettini defeated Aslan Karatsev in the final, 6–1, 3–6, 7–6 to win the men's singles tennis title at the 2021 Serbia Open.

Andreas Seppi was the reigning champion from when the event was last held in 2012, but he decided not to participate this year.

Seeds

The top four seeds received a bye into the second round.

1. Novak Djokovic (semifinals)
2. Matteo Berrettini (champion)
3. Aslan Karatsev (final)
4. Dušan Lajović (second round)
5. Filip Krajinović (quarterfinals)
6. Márton Fucsovics (withdrew)
7. John Millman (second round)
8. Miomir Kecmanović (quarterfinals)
9. Laslo Đere (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	1	Novak Djokovic	5	6	4
	3	Aslan Karatsev	7	4	6
								3	Aslan Karatsev	1	6	6
								2	Matteo Berrettini	6	3	7
	LL	Taro Daniel	1	7	0
	2	Matteo Berrettini	6	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	N Djokovic	6	6
		S-w Kwon	6	7					S-w Kwon	1	3
	LL	R Carballés Baena	3	5											1	N Djokovic	6	6
	Q	A Rinderknech	6	7											8	M Kecmanović	1	3
		JI Londero	1	5				Q	A Rinderknech	3	6	3
	Q	F Bagnis	6	6				8	M Kecmanović	6	3	6
	8	M Kecmanović	7	7																		1	N Djokovic	5	6	4
																						3	A Karatsev	7	4	6
								3	A Karatsev	6	4	7
		S Korda	5	6	6				A Bedene	3	6	6
		A Bedene	7	1	7										3	A Karatsev	6	6
	Q	F Cerúndolo	6	6	6										Q	G Mager	3	4
		A Popyrin	4	7	7				A Popyrin	5	2
	Q	G Mager	6	6				Q	G Mager	7	6
	9	L Đere	4	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	J Millman	7	6
	WC	D Petrović	5	4				7	J Millman	6	2	3
	LL	J Sousa	5	3				LL	T Daniel	3	6	6
	LL	T Daniel	7	6											LL	T Daniel	4	6	7
		R Berankis	4	6	1											F Delbonis	6	1	5
		F Delbonis	6	3	6				F Delbonis	6	2	6
								4	D Lajović	3	6	4
																						LL	T Daniel	1	7	0
	5	F Krajinović	7	5	6																	2	M Berrettini	6	6	6
		S Travaglia	5	7	3			5	F Krajinović	6	6
	WC	N Milojević	6	6				WC	N Milojević	1	1
		F Coria	4	0											5	F Krajinović	4	4
	WC	V Troicki	1	4											2	M Berrettini	6	6
		M Cecchinato	6	6					M Cecchinato	4	3
								2	M Berrettini	6	6

Qualifying

Seeds

1. Gianluca Mager (qualified)
2. Facundo Bagnis (qualified)
3. Roberto Carballés Baena (qualifying competition, lucky loser)
4. João Sousa (qualifying competition, lucky loser)
5. Yūichi Sugita (first round)
6. Daniel Elahi Galán (first round)
7. Francisco Cerúndolo (qualified)
8. Taro Daniel (qualifying competition, lucky loser)

Qualifiers

1. Gianluca Mager
2. Facundo Bagnis
3. Francisco Cerúndolo
4. Arthur Rinderknech

Lucky losers

1. Roberto Carballés Baena
2. João Sousa
3. Taro Daniel

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Gianluca Mager	4	7	6
		Benjamin Bonzi	6	6	3
								1	Gianluca Mager	6	4	6
								8	Taro Daniel	1	6	4
	WC	Marko Miladinović	1	2
	8	Taro Daniel	6	6

Second qualifier

	First round							Qualifying competition
	2	Facundo Bagnis	6	6
		Evgeny Donskoy	3	2
								2	Facundo Bagnis	6	6
								WC	Hamad Međedović	4	2
	WC	Hamad Međedović	7	7
	6	Daniel Elahi Galán	6	6

Third qualifier

	First round							Qualifying competition
	3	Roberto Carballés Baena	7	2	0
		Damir Džumhur	6	6	0
								3	Roberto Carballés Baena	6	4
								7	Francisco Cerúndolo	7	6
		Jozef Kovalík	5	4
	7	Francisco Cerúndolo	7	6

Fourth qualifier

	First round							Qualifying competition
	4	João Sousa	6	6
		Brandon Nakashima	4	2
								4	João Sousa	5	4
									Arthur Rinderknech	7	6
		Arthur Rinderknech	6	6
	5	Yūichi Sugita	1	2

References

1. "Berrettini Battles Past Karatsev For Belgrade Title". atpworldtour.com. ATP. 25 April 2021. Retrieved 29 April 2021.
2. "ATP Tour To Return To Belgrade In 2021, Following Budapest Relocation". ATP Tour. 20 January 2021.

External links

• Main draw
• Qualifying draw

• 2021 ATP Tour
• Serbia Open